<template>
  <div>
    <!-- 面包屑导航区域 -->
    <Break></Break>
    <!-- 卡片区域 -->
    <el-card>
      <!-- 提示区 -->
      <el-alert
        title="添加商品信息"
        type="info"
        center
        show-icon
        :closable="false"
      ></el-alert>
      <!-- 步骤条 -->
      <el-steps
        :space="200"
        :active="activeIndex - 0"
        finish-status="success"
        align-center
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <!-- tab栏区域 -->
      <el-form
        :model="addForm"
        :rules="addrules"
        ref="addGoodsForm"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          v-model="activeIndex"
          :tab-position="'left'"
          @tab-click="tabClick"
          :before-leave="beforeTabLeave"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称 " prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop>
              <el-cascader
                expand-trigger="hover"
                v-model="addForm.goods_cat"
                :options="cateList"
                :props="cateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <!-- 复选框组 -->
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  :label="cb"
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <!-- 商品图片上传
  action:指定图片上传api接口
  :on-preview ： 当点击图片时会触发该事件进行预览操作,处理图片预览
  :on-remove : 当用户点击图片右上角的X号时触发执行
  :on-success：当用户点击上传图片并成功上传时触发
  list-type ：设置预览图片的方式
  :headers ：设置上传图片的请求头 -->
            <el-upload
              action="http://127.0.0.1:8888/api/private/v1/upload"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              :on-success="handleSuccess"
              list-type="picture"
              :headers="headerObj"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <!-- 富文本编辑器组件 -->
            <quill-editor v-model="addForm.goods_introduce"></quill-editor>
            <!-- 添加商品按钮 -->
            <el-button type="primary" class="btnAdd" @click="handAdd"
              >添加商品</el-button
            >
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
  </div>
</template>

<script>
import goodAPI from "../../http/API/Good"
import Break from "../bread";
export default {
  components: {
    Break,
  },
  data() {
    return {
      activeIndex: "0",
      addForm: {
        goods_name: "",
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        //商品所属分类数组
        goods_cat: [],
        pics: [],
        goods_introduce: "",
      },
      addrules: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" },
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" },
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" },
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" },
        ],
        goods_cat: [
          { required: true, message: "请选择商品分类", trigger: "blur" },
        ],
      },
      cateList: [],
      cateProps: {
        label: "cat_name",
        value: "cat_id",
        children: "children",
      },
      //动态参数列表数据
      manyTableData: [],
      //静态属性列表数据
      onlyTableData: [],

      //图片上传组件的headers请求头对象
      headerObj: { Authorization: window.sessionStorage.getItem("token") },
      //保存预览图片的url地址
      previewPath: "",
      //控制预览图片对话框的显示和隐藏
      previewVisible: false,
    };
  },

  methods: {
    getGoodsList() {
      this.$http.get("categories").then((res) => {
        this.cateList = res.data.data;
      });
    },
    //级联选择器选中项变化
    handleChange() {
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = [];
      }
    },
    beforeTabLeave(activeName, oldActiveName) {
      if (oldActiveName === "0" && this.addForm.goods_cat.length !== 3) {
        this.$message.error("请选择商品分类");
        return false;
      }
    },
    //商品参数
    tabClick() {
      if (this.activeIndex === "1") {
        goodAPI.getParamsList({
            params: { sel: "many" },
          })
          .then((res) => {
            res.data.data.forEach((item) => {
              item.attr_vals =
                item.attr_vals.length === 0 ? [] : item.attr_vals.split(" ");
            });
            this.manyTableData = res.data.data;
          });
      } else if (this.activeIndex === "2") {
        goodAPI.getParamsList({
            params: { sel: "only" },
          })
          .then((res) => {
            console.log(res);
            this.onlyTableData = res.data.data;
          });
      }
    },
    handlePreview(file) {
      this.previewPath = file.response.data.url;

      this.previewVisible = true;
    },
    handleRemove(file) {
      const filePath = file.response.data.tmp_path;

      const index = this.addForm.pics.findIndex(
        (item) => item.pic === filePath
      );
      this.addForm.pics.splice(index, 1);
    },
    handleSuccess(response) {
      this.addForm.pics.push({ pic: response.data.tmp_path });
    },
    handAdd() {
      this.$refs.addGoodsForm.validate(async (valid) => {
        if (!valid) {
          return this.$message.error("请填写必要的选项!");
        }
        // console.log(this.addForm);
        let form = this.deepClone(this.addForm);
        form.goods_cat = form.goods_cat.join(",");
        form.attrs = [];
        this.manyTableData.forEach((item) => {
          form.attrs.push({
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(","),
          });
        });
        this.onlyTableData.forEach((item) => {
          form.attrs.push({
            attr_id: item.attr_id,
            attr_value: item.attr_vals,
          });
        });
        console.log(form);
        const { data: res } = await goodAPI.addGoods(form);
        // console.log(res);
        if (res.meta.status !== 201) return this.$message.error(res.meta.msg);
        this.$message.success("添加商品成功！");
        this.$router.push("/goods");
      });
    },
    deepClone(obj) {
      if (typeof obj !== "object" || obj == null) {
        return obj;
      }
      let result;
      if (obj instanceof Array) {
        result = [];
      } else {
        result = {};
      }
      for (let key in obj) {
        if (obj.hasOwnProperty(key)) {
          result[key] = this.deepClone(obj[key]);
        }
      }
      return result;
    },
  },

  created() {
    this.getGoodsList();
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2];
      }
      return null;
    },
  },

  mounted() {},
};
</script> 


<style scoped>
.el-card {
  margin-top: 15px;
}
.el-steps {
  margin: 15px 0;
}
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #409eff;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  line-height: 178px;
  text-align: center;
}
.avatar {
  width: 178px;
  height: 178px;
  display: block;
}
.ql-editor {
  min-height: 300px;
}
.btnAdd {
  margin-top: 15px;
}
</style>
